Sol Saks, the creator of the hit 1960s series Bewitched, died Saturday at 100 years old, Variety reports. The television writer and playwright passed away Saturday of respiratory failure resulting from pneumonia. Saks’ main contribution to the series was the pilot; he never wrote any other Bewitched episode.

Saks began his career in radio, and penned episodes for TV series like My Favorite Husband. He also wrote the 1966 film Walk, Don’t Run, starring Cary Grant.